The Roland SC-8850 is the flagship model of Roland's renowned SC (Sound Canvas) series. It's ideal for music production and building a DTM (desktop music) environment. SC Series Flagship: Supports 128-voice polyphony and 64-part multitimbral operation. Extensive Sound Library: Features 1640 tones and 63 drum sets. High Connectivity: Equipped with MIDI terminals and a USB port for easy connection to a PC. Effects: Includes reverb, chorus, delay, and 64 insertion effects. Sound Source Compatibility: Compatible with the sound source maps of the SC-88Pro, SC-88, and SC-55. ⚙️Condition This is a used item. 【Operational Check】 Power-on functionality has been confirmed. (Supplement) Due to this being an older sound module, we cannot guarantee sound output from all parts, the proper function of each button and knob, or the operation of all terminals. Please purchase only if you understand audio equipment. The exterior may have scratches, scuffs, and stains associated with normal use. Please check the images. Since no accessories are mentioned, the item will be sold with only the main unit and power cable. (※AC cable is required separately.) ⚠️Important Notes Returns and exchanges are not accepted after purchase. Please understand that this is an old, used device before purchasing. For detailed specifications and operating instructions, please refer to the PDF manual on the official website below. Roland SC-8850 Instruction Manual http://lib.roland.co.jp/support/jp/manuals/res/1810481/SC-8850_j8.pdf